21554889

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5653}}^1$

素因数の和:5728

約数の個数: 16

約数和(自身を含む): 30395904

約数和(自身を除く): 8841015

約数列:

[1, 3, 31, 41, 93, 123, 1271, 3813, 5653, 16959, 175243, 231773, 525729, 695319, 7184963, 21554889]

約数ペア:

[(1, 21554889), (3, 7184963), (31, 695319), (41, 525729), (93, 231773), (123, 175243), (1271, 16959), (3813, 5653)]